Charles pack



C. PACK.

MANUFACTURE OF DEVICES FOR RELATIVE, ROTATION.

APPLICATION FILED NOV. 29. 1919.

1,363,344. Patented Dec. 28,1920.

27 91, v 29? 6 is 10 8 14 11 g 1 r f f A! 2 a 6 i3 2 INVENTOR.

@M BY ATTORNEY.

UNITED STATES PATENT OFFICE.

CHARLES PACK, OF BROOKLYN, NEW YORK, ASSIGN OR TO DOEHLER DIE CASTING COMPANY, OF BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

MANUFACTURE OF DEVICES FOR RELATIVE ROTATION.

Application filed November 29, 1919.

To all whom it may concern Be it known that I CHARLES PACK, a citizen of the United tates, residing in the borough of Brooklyn, county of Kings, city and State of New York, have invented certain new and useful Improvements in the Manufacture of Devices for Relative Rotation, of which the following is a specification.

My invention relates to the manufacture of devices intended for relative rotation and comprises an improved form of construction for such devices. The particular purpose of my invention is to provide a construction in which relative movement in an axial direction between two relatively rotatable members, such as a sleeve and a cylindrical member within the same, is prevented.

In the construction of a part which is to rotate within another part, such, for example, as a form of door handle having a shank rotatably mounted within a sleeve or boss of a fixed bracket, difficulty is likely to be experienced in so connecting the parts as to prevent relative lengthwise movement of the shank and sleeve. By my invention the parts are connected together in a simple and effective manner so as to permit relative rotation and to prevent lengthwise movement or play, even after a considerable use of the device. The process has the further advantage that the device may be constructed largely by casting operations.

I accomplish the desired result by providing one of the two relatively rotatable members, such, for example, as the shank, with a circumferential groove formed on its cylindrical surface, and providing the other member, such as the sleeve, with a passageway from an outside surface thereof, which is adapted to communicate with the groove referred to when the parts are operatively positioned. If the circumferential groove first referred to is formed on the periphery of the shank, the passageway referred to may take the form of a circular groove on the end surface of the sleeve member, surrounding the shank when the latter is positioned within the sleeve, and communicating with the groove in the shank. The shank being mounted within the sleeve a suitable fluid material which may be adapt ed to set and harden, such as metal of a low fusing point, is poured or forced through the passageway or groove which extends from an outside surface of one, of the mem- Specification of Letters Patent.

Patented Dec. 28, 1920.

Serial No. 341,528.

bers, the metal flowing into and filling both the inside groove and the outside passageway or groove. Upon the hardening of this material a locking ring will be formed within the groove first mentioned, this rin having an offset portion or portions within the other of the two members so as to effectively lock the members against relative lengthwise movement. The inside member may be provided with a shoulder against which an end of the sleeve member will abut, so that it is only necessary to prevent relative movement of the sleeve away from the shoulder. This is accomplished by the ring at the opposite end of the sleeve, specifically referred to above.

In order that my invention may be more clearly understood, attention is hereb di rected to the accompanying drawings orming part of this application and illustrating one form of my invention. In the drawings, Figure 1 represents partly in section and partly in side elevation a bracket having a sleeve portion and a handle device having a shank about to be inserted there in; Fig. 2 is a similar View showing the shank inserted within the sleeve; Fig. 3 is a similar view showing the formation of a locking ring by metal cast into the alined openings in the sleeve and shank; and Fig. i is a bottom plan view of the finished device, certain parts being shown broken away, and certain parts being shown in section.

Referring to the drawings, the member 1 is provided with a sleeve portion 2 and may additionally have a base flange 3 provided with holes l through which screws or the like may be extended to secure the base flange to a desired surface. The sleeve portion 2 of the member is provided with a cylindrical bore 5 in which the cylindrical shank 6 is adapted to be mounted for rota- .tion. The shank 6 is represented as having groove Will be provided with groove or 5 the locking devise will prevent psssssre'rmy oxtendin FY0931 on t or iwise movement oi the shone within to i v A 3'; 1

zero in one direction while she shoulder face into communication with the groove r vents such first mentioned. ln the einoodh lent of my i by the en irgernent 12; e invention as shown in the drawings, the niovoniient in the ogposite direction, the shank 6 is provided with groove which form oi. the locking device preventing the uni slipping out of place. if desired extends about the same at a short distsnce *snt groove or grooves 18 may be from the end 9 of the shenlr. The eylin- 7 V V q dricsl bore 5 of the sleeve member extends QZ'OYHlEJl upon the suriree or toe shank 6.

from the end 10 of the sleeve for s eerwill he obvious the in practising my luori tsin distance, beyond Which the opening is process and r iflfOflUClDg the imtspered outwardly as 1s shown 11, so role am not 1r dto the err-act "ed and spe- "n of my in- :he accompany eo -truotion ill dosered the o A being indicated by that the base flange 3 will have s, tsgered opening extending therethrough which er:- tends into and forms a continuation of the cylindrical. here 5.

T he sleeve member 1 and the member comprising the shank 6 and he idle portion may be and preferably are ed by e oesting process of at suitable me such as steel. The groove 8 and the taper d en z 3 1.1 of the bore of the sleeve ree J i' i uriece 7 formed by machining tie ports J i i er or said same have b e or l1) t F extendiii t ture s ine- L re. s i

ineniber any mount- 1 eis having f2 into cointhe i of device illustr er, 1th 1 locking; "led with it rounded roove and member is provh rnent 12 at the end of the shsnl: portr The parts having been prepared as he scribed above, the shank 6 is inserted withi ireture, it 1116- in the sleeve 2 as is shown 2 the Ir nwn'iber oonprisin sleeve, member enlsrg ,inent 12 contacting d cylindrical inlr rotstshly mount- 10 or the sleeve 2 to form ston. The ii i sieeve seidshun hzivingsperiphtapered enlergeinei t 11 of the sore l5 oi"; the in :11 groove adjacent nd and said sleeve sleeve member provide a irenini erentisi k :1 tapered groove 7 1 its end surfsee, groove 13 in the end surfac 14; ot the :nemi finding ssidshsnir and extending into Ber; 1 which grogve, surrounds :fihg. m-- ("halll'lfiiilChlliOil Wltll SLlltl l'ilSt neined glOOVG,

tion of the shank 6 and communicates 1 h :xtrn 21 the groove 8,

in Fig. 2 it suitable iiuid insterie the locking device 1s flowed into t 0* groove or recess 13. Prefers shsnlr rotetrl l olv the torn: of a suitable metal I r I pen which Will not bind, ad acent its e'io, opposite iroin sznd and extenchno against either the shank or the s members being posltloned with M- of member 1 uppermost o comniunic ition said ii name k oove id on annulus ted Within and sp re: irnitly filling t id grooves.

groove 8 communicating tl erewith. eoiiicetion signed and witnessed this metal has set sid hardened a 100 it of November 1919 inciring 15 will be formed hereby as ested in 111g. This ioclnng ring prises an annular )ortion 16 seated v t re groove 8 and i "T751011 1"? grsl the"ewith hlh? roove 

